Abstract:
A method includes generating multiple embedded features representing operational data of network elements in a wireless communication network. The method also includes generating a relationship graph based on the embedded features, the relationship graph representing behavior of the network elements in the wireless communication network. The method also includes detecting one or more anomalies in the wireless communication network using the relationship graph, the one or more anomalies identifying one or more deviations of one or more of the network elements from an expected behavior of the one or more network elements. The method also includes generating network analytics based on the one or more detected anomalies.
Abstract:
A method includes partitioning a set of configuration management (CM) data for one or more cellular network devices into multiple distinct time intervals. The method also includes determining one or more temporal points of interest in each time interval based on whether CM changes exist during that time interval. The method also includes, for each temporal point of interest in each time interval, identifying a first set of data samples before that temporal point of interest and a second set of data samples after that temporal point of interest, and averaging features and a target key performance indicator (KPI) in the first set of data samples and in the second set of data samples. The method also includes performing regression analysis to determine an impact of the features on the target KPI.
Abstract:
A method includes partitioning a set of configuration management (CM) data for one or more cellular network devices into multiple distinct time intervals, each time interval associated with a distinct set of CM settings at the one or more cellular network devices, the CM data comprising multiple CM parameters. The method also includes determining a regression model based on the set of CM data. The method also includes applying the regression model to compute a distinct set of scores and compare the set of scores to estimate whether a performance of the one or more cellular network devices has changed during a second time interval relative to a first time interval.
Abstract:
A method for performing line-of-sight (LoS)/non-line-of-sight (NLoS) filtering includes collecting, from at least one user equipment (UE) operating within a coverage area of a base station, a plurality of measurement reports from the at least one UE, wherein each measurement report of the plurality of measurement reports comprises a measured value of a signal parameter and location information of the at least one UE. The method further includes training a LoS/NLoS classification model on the plurality of measurement reports, obtaining a new measurement report from a UE operating at a first location within the coverage area of the base station and passing the new measurement report from the UE to the trained LoS/NLoS classification model to obtain a LoS/NLoS classification of the first location.
Abstract:
A method for operating a large scale antenna array in a wireless communication system includes receiving one or more signals. The one or more signals include information for beamforming to a plurality of user equipments (UEs) using a full-dimensional multiple-input multiple-output (FD-MIMO) beamforming scheme. The FD-MIMO beamforming scheme includes same time resources and same frequency resources that are co-scheduled to the plurality of UEs. The method further includes identifying a time delay of the one or more signals associated with one or more antenna arrays that are distributed in the large scale antenna array and performing a multi-user (MU) joint beamforming on the one or more signals to one or more UEs.
Abstract:
A method for network assisted interference mitigation includes identifying at least one pair of adjacent resource blocks within a same subframe. The at least one pair includes a low power resource block (RB) and a high power RB. The low power RB has a substantially lower beamforming gain compared to the high beamforming gain of the high power RB such that a ratio (R) comparing receive powers of the high power RB and the low power RB to each other is greater than a threshold ratio (μ). The method includes reducing a transmit power of the high power RE to a reduced transmit power level at which the ratio R is less than or equal to the threshold ratio μ (R≦μ).
Abstract:
Methods and apparatus of constructing rank-1 and/or rank-2 codebooks for advanced communication systems with 4 transmit antennas and two-dimensional (2D) M×N transmit antenna elements are provided. A double-codebook structure is considered for 4-Tx antenna configuration. Single-codebook and double-codebook structures are considered for two-dimensional (2D) M×N transmit antenna elements.